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United States Patent | 5,098,543 |
Bennett ,   et al. | March 24, 1992 |
A catalytically-coated valve metal reference electrode is used to measure the potential of reinforcing members in concrete in a system to cathodically protect the same.
Inventors: | Bennett; John E. (324 Irma Dr., Chardon, OH 44024); Powers; Rodney G. (3932 NW. 43rd Ct., Gainesville, FL 32602); Martin; Barry L. (8132 S. Chariot St., Concord, OH 44060) |
Appl. No.: | 701717 |
Filed: | May 17, 1991 |
Current U.S. Class: | 204/196.06; 204/196.3; 204/196.36; 204/290.12; 204/290.14; 204/435 |
Intern'l Class: | C23F 013/00 |
Field of Search: | 204/147,148,196,197,435,290 F |
3462353 | Aug., 1969 | Every et al. | 204/435. |
4502929 | Mar., 1985 | Stewart et al. | 204/196. |
4506485 | Mar., 1985 | Apostolos | 204/196. |
4519886 | May., 1985 | de Nora et al. | 204/196. |
______________________________________ Anode Mesh Specifications ______________________________________ Type 1 Mesh Composition Titanium Grade 1 Width of Roll 45 inches (112.5 cm) Length 250 to 500 ft. (75 to 150 m) Weight 26 lbs./1000 ft..sup.2 (11.7 kg/100 m.sup.2) Diamond Dimension 3" LWD .times. 11/3" SWD (7.6 cm LWD .times. 3.3 cm SWD) Resistance Lengthwise .026 ohm/ft. (0.086 ohm/m) (45 inch/112.5 cm wide) Resistance Widthwise with .007 ohm/ft. (0.02 ohm/m) Current Distributor Bending Radius 3/32 inches (0.24 cm) Bending Radius in Mesh Plane 50 ft. (15 m) Type 2 Mesh Composition Titanium Grade 1 Width of Roll 4 ft. (122 cm) Length 250 to 500 ft. (75 to 150 m) Weight 45 lbs./1000 ft..sup.2 (20.2 kg/100 m.sup.2) Diamond Dimension 3" LWD .times. 11/3" SWD (7.6 cm LWD .times. 3.3 cm SWD) Resistance Lengthwise .014 ohm/ft. (4 ft., 122 cm wide) Resistance Widthwise with .005 ohm/ft. (0.016 ohm/m) Current Distributor Bending Radius 3/32 inches (0.24 cm) Bending Radius in Mesh Plane 50 ft. (15 m) ______________________________________